B&B Electronics DTB Series user manual RS-485 Communication, Address, 100AH, 101AH, 102AH

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RS-485 Communication

1.Supporting transmission speed: 2400, 4800, 9600, 19200, 38400bps

2.Non-supported formats: 7, N, 1 or 8, O, 2 or 8, E, 2

3.Communication protocol: Modbus (ASCII or RTU)

4.Function code: 03H to read the contents of register (Max. 8 words). 06H to write 1 (one) word into register. 02H to read the bits data (Max. 16 bits). 05H to write 1 (one) bit into register.

5.Address and Content of Data Register:

Address	Content	Explanation
		Measuring unit is 0.1, updated one time in 0.4 second
		The following reading value display indicates error occurs:
1000H	Process value (PV)	8002H : Initial process (Temperature value is not got yet)
		8003H : Temperature sensor is not connected
		8004H : Temperature sensor input error
		8006H : Cannot get temperature value, ADC input error
		8007H : Memory read/write error
1001H	Set point (SV)	Unit is 0.1, oC or oF
1002H	Upper-limit of temperature range	The data content should not be higher than the temperature range
1003H	Lower-limit of temperature range	The data content should not be lower than the temperature range
1004H	Input temperature sensor type	Please refer to the contents of the “Temperature Sensor Type and Temperature Range” for detail
1005H	Control method	0: PID, 1: ON/OFF, 2: manual tuning, 3: PID grogram control
1006H	Heating/Cooling control selection	0: Heating, 1: Cooling, 2: Heating/Cooling, 3: Cooling/Heating
1007H	1st group of Heating/Cooling control	0~99, 0:0.5 sec
	cycle	0~99, 0:0.5 sec
1008H	2nd group of Heating/Cooling control
	cycle	0.1 ~ 999.9
1009H	PB Proportional band
100AH	Ti Integral time	0~9999
100BH	Td Derivative time	0~9999
100CH	Integration default	0~100%, unit is 0.1%
100DH	Proportional control offset error value,	0~100%, unit is 0.1%
	when Ti = 0	0.01 ~ 99.99
100EH	The setting of COEF when Dual Loop
	output control are used	-999 ~ 9999
100FH	The setting of Dead band when Dual
	Loop output control are used	0 ~ 9999
1010H	Hysteresis setting value of the 1st
	output group	0 ~ 9999
1011H	Hysteresis setting value of the 2nd
	output group	Unit is 0.1%, write operation is valid under manual tuning mode only.
1012H	Output value read and write of Output
	1	Unit is 0.1%, write operation is valid under manual tuning mode only.
1013H	Output value read and write of Output
	2	1 Unit = 2.8uA(Current Output) = 1.3mV(Linear Voltage Output)
1014H	Upper-limit regulation of analog linear
	output	1 Unit = 2.8uA(Current Output) = 1.3mV(Linear Voltage Output)
1015H	Lower-limit regulation of analog linear
	output	-999~+999, unit: 0.1
1016H	Temperature regulation value
1017H	Analog decimal setting	0 ~ 3
1018H	Time for valve from full open to full	0.1~999.9
	close	0~100%; unit: 0.1%
1019H	Dead Band setting of valve
101AH	Upper-limit of feedback signal set by	0~1024
	valve	0~1024
101BH	Lower-limit of feedback signal set by
	valve	0~4
101CH	PID parameter selection
101DH	SV value corresponded to PID value	Only valid within available range, unit: 0.1 scale
1020H	Alarm 1 type	Please refer to the contents of the “Alarm Outputs” for detail
1021H	Alarm 2 type	Please refer to the contents of the “Alarm Outputs” for detail
1022H	Alarm 3 type	Please refer to the contents of the “Alarm Outputs” for detail
1023H	System alarm setting	0 : None (default), 1~3 : Set Alarm 1 to Alarm 3
1024H	Upper-limit alarm 1	Please refer to the contents of the “Alarm Outputs” for detail
1025H	Lower-limit alarm 1	Please refer to the contents of the “Alarm Outputs” for detail
1026H	Upper-limit alarm 2	Please refer to the contents of the “Alarm Outputs” for detail
1027H	Lower-limit alarm 2	Please refer to the contents of the “Alarm Outputs” for detail
1028H	Upper-limit alarm 3	Please refer to the contents of the “Alarm Outputs” for detail
1029H	Lower-limit alarm 3	Please refer to the contents of the “Alarm Outputs” for detail
102AH	Read LED status	b0 : Alm3, b1: Alm2, b2: F, b3: oC, b4: Alm1, b5: OUT2, b6: OUT1, b7: AT
102BH	Read pushbutton status	b0 : Set, b1 : Select, b2 : Up, b3 : Down. 0 is to push
102CH	Setting lock status	0 : Normal, 1 : All setting lock, 11 : Lock others than SV value
102DH	CT read value	Unit: 0.1A
102FH	Software version	V1.00 indicates 0x100